Advanced trainers

Where’s the time when there were over 3000 messages on this forum? …

The only thing that can change this is by creating new topics.
Let’s give it a shot.

Well: Which constructors are currently developping jet trainers?
The only two new types I know (which actually fly) are the MiG-AT and the Yak-130.
I believe there will be a enormeous market for such planes in the future (replacing the T-38, Alpha Jet, Hawk, L-39, L-59,…) but why aren’t there others who are working on a jet trainer? (OK, there is the MAKO concept from DASA, but it isn’t very concrete)
Can anyone give some comment on the next questions:
How are the MiG-AT and Yak130 doing right now?
Are there any other types currently developping?
Aren’t jettrainers too expensive?

Bredero